University, Pontotoc, MS 38863. …ir4.rutgers.edu/FoodUse/PerfData/3967.pdf · Rating Type CONTRO...
10
Linuron Weed Control Systems in Sweetpotato. Mark W. Shankle, Stephen L. Meyers, and Trevor F. Garrett, Pontotoc Ridge-Flatwoods Branch Experiment Station, Mississippi State University, Pontotoc, MS 38863. ([email protected] ) ABSTRACT In 2014, a field study was conducted at the Pontotoc Ridge-Flatwoods Branch Experiment Station near Pontotoc, Mississippi to evaluate the potential use of linuron in sweetpotato production. The experimental design was a randomized complete block (RCB) with 4 replications. Plots were 10 x 30 ft with three 40-inch rows. Beauregard B-14 sweetpotato slips were transplanted on June 30, 2014 along with pre-transplant (PREP) and post-transplant (POSTP) treatments. Lay-by (LB) treatments were applied on July 23, 2014 as cultivation fb herbicide over-the-top. Treatments included linuron 1.5 or 2.0 pt/ac applied PREP and POSTP, Valor 2 oz/ac PREP + Command 2.67 pt/ac POSTP f/b cultivation + Dual Mag 0.8pt/ac LB, Command 2.67 pt/ac POSTP fb cultivation + linuron 1.5 pt/ac LB, Command 2.67 pt/ac POSTP fb cultivation + linuron 2.0 pt/ac LB, and an untreated weedy check. A weed-free treatment was included, but yield was lower than all other treatments due to routine foot-traffic in plots to manually remove weeds. Therefore, the weed-free was not included due false negative data. Ratings were made at 2 and 4 weeks after planting (WAP) and pre-harvest for crabgrass (Digitaria sanguinalis) and slender pigweed (Amaranthus hybridus) control, as well as crop tolerance (injury). Sweetpotatoes were harvested on October 24, 2014 at 116 days after transplant and graded to determine US No.1, Canner, Cull, and Jumbo yield grades. Total marketable yield was recorded as the sum of US No.1, Canner, and Jumbo grade yields. Analysis of variance was conducted using Fisher's protected LSD (a=0.05) Sweetpotato injury was less than 8% for all treatments at 2 WAP. The highest injury at 2 WAP for treatments of linuron was 5% with linuron 1.5 pt/ac POSTP. No injury was observed for any treatment at 4 WAP or pre-harvest. Slender pigweed control was 100% for all herbicide treatments at 2 WAP. All treatments that included a Command 2.67 pt/ac POSTP fb cultivation + LB treatment controlled pigweed 100% at 4 WAP and at least 99% pre-harvest. Linuron applied alone (PREP and POSTP) controlled pigweed 88 to 93% and 77 to 84% at 4 WAP and pre-harvest, respectively. Pigweed control was highest with linuron 2 pt/ac POSTP, but was not different compared to all other linuron treatments applied alone. Crabgrass control was 100% for all herbicide treatments at 2 WAP and at least 97 and 88% with linuron applied alone at 4 WAP and pre-harvest, respectively. All treatments that included a Command 2.67 pt/ac POSTP fb cultivation + LB treatment controlled crabgrass 100% at 4 WAP and pre-harvest. US No. 1 Yield ranged from 320 to 568 boxes/ac for the weedy check and Command 2.67 pt/ac POSTP fb cultivation + linuron 2.0 pt/ac LB, respectively. Total marketable yield ranged from 431 to 733 boxes/ac for the weedy check and linuron at 1.5 pt/ac POSTP, respectively.
Transcript of University, Pontotoc, MS 38863. …ir4.rutgers.edu/FoodUse/PerfData/3967.pdf · Rating Type CONTRO...
Linuron Weed Control Systems in Sweetpotato. Mark W. Shankle, Stephen L. Meyers, and Trevor F. Garrett, Pontotoc Ridge-Flatwoods Branch Experiment Station, Mississippi State University, Pontotoc, MS 38863. ([email protected])
ABSTRACT
In 2014, a field study was conducted at the Pontotoc Ridge-Flatwoods Branch Experiment Station near Pontotoc, Mississippi to evaluate the potential use of linuron in sweetpotato production. The experimental design was a randomized complete block (RCB) with 4 replications. Plots were 10 x 30 ft with three 40-inch rows. Beauregard B-14 sweetpotato slips were transplanted on June 30, 2014 along with pre-transplant (PREP) and post-transplant (POSTP) treatments. Lay-by (LB) treatments were applied on July 23, 2014 as cultivation fb herbicide over-the-top. Treatments included linuron 1.5 or 2.0 pt/ac applied PREP and POSTP, Valor 2 oz/ac PREP + Command 2.67 pt/ac POSTP f/b cultivation + Dual Mag 0.8pt/ac LB, Command 2.67 pt/ac POSTP fb cultivation + linuron 1.5 pt/ac LB, Command 2.67 pt/ac POSTP fb cultivation + linuron 2.0 pt/ac LB, and an untreated weedy check. A weed-free treatment was included, but yield was lower than all other treatments due to routine foot-traffic in plots to manually remove weeds. Therefore, the weed-free was not included due false negative data. Ratings were made at 2 and 4 weeks after planting (WAP) and pre-harvest for crabgrass (Digitaria sanguinalis) and slender pigweed (Amaranthus hybridus) control, as well as crop tolerance (injury). Sweetpotatoes were harvested on October 24, 2014 at 116 days after transplant and graded to determine US No.1, Canner, Cull, and Jumbo yield grades. Total marketable yield was recorded as the sum of US No.1, Canner, and Jumbo grade yields. Analysis of variance was conducted using Fisher's protected LSD (a=0.05)
Sweetpotato injury was less than 8% for all treatments at 2 WAP. The highest injury at 2 WAP for treatments of linuron was 5% with linuron 1.5 pt/ac POSTP. No injury was observed for any treatment at 4 WAP or pre-harvest.
Slender pigweed control was 100% for all herbicide treatments at 2 WAP. All treatments that included a Command 2.67 pt/ac POSTP fb cultivation + LB treatment controlled pigweed 100% at 4 WAP and at least 99% pre-harvest. Linuron applied alone (PREP and POSTP) controlled pigweed 88 to 93% and 77 to 84% at 4 WAP and pre-harvest, respectively. Pigweed control was highest with linuron 2 pt/ac POSTP, but was not different compared to all other linuron treatments applied alone. Crabgrass control was 100% for all herbicide treatments at 2 WAP and at least 97 and 88% with linuron applied alone at 4 WAP and pre-harvest, respectively. All treatments that included a Command 2.67 pt/ac POSTP fb cultivation + LB treatment controlled crabgrass 100% at 4 WAP and pre-harvest.
US No. 1 Yield ranged from 320 to 568 boxes/ac for the weedy check and Command 2.67 pt/ac POSTP fb cultivation + linuron 2.0 pt/ac LB, respectively. Total marketable yield ranged from 431 to 733 boxes/ac for the weedy check and linuron at 1.5 pt/ac POSTP, respectively.
Sep-4-2015 (Linuron_Rate_Application IR-4_Final) AOV Means Table Page 1 of 9
Mississippi State University
Trial ID: Linuron IR-4 Location: Pontotoc Trial Year: 2014 Protocol ID: Investigator: Mark W. Shankle
Project ID: Study Director: Sponsor Contact:
Pest Type Pest Code Pest Scientific Name Pest Name Crop Code IPOBA IPOBA IPOBA BBCH Scale BVPP BVPP BVPP Crop Scientific Name Ipomoea batatas Ipomoea Ipomoea batatas
batatas Crop Name Sweet potato Sweet potato Sweet potato Crop Variety B-14 B-14 B-14 Description Part Rated PLANT - PLANT - PLANT - Rating Date Jul-9-2014 Jul-15-2014 Jul-23-2014 Rating Type Rating Unit
PHYGEN ok
PHYGEN PHYGEN
Number of Subsamples 1 1 1 Days After First/Last Applic. 9 9 15 15 23 23 Trt-Eval Interval 9 DA-A 9 DA-A 9 DA-A Plant-Eval Interval 9 DP-1 15 DP-1 23 DP-1 ARM Action Codes AS
Trt Treatment No. Type Name
Form Form Form Rate Conc Unit Type Rate Unit
Other Other Growth Appl Rate Rate Unit Stage Code 1 2 3
1 HERB Valor 51 % WG 1.024 oz ai/a 2 oz wt/a PRETRA A 11.3 a 7.3 a 0.0 a HERB Command 3 LBA/GAL ME 1 lb ai/a 2.67 pt/a POSTTR B CULT Roll Cultivator LAYBY C HERB Dual Mag 7.62 LBA/GAL EC 0.762 lb ai/a 0.8 pt/a LAYBY C
2 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a PRETRA A 5.0 b 0.0 b 0.0 a 3 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a PRETRA A 6.3 ab 0.7 ab 0.0 a 4 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a POSTTR B 11.3 a 5.2 ab 0.0 a 5 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a POSTTR B 6.3 ab 3.2 ab 0.0 a 6 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 8.8 ab 2.6 ab 0.0 a
CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 Oa LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
7 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 7.5 ab 0.7 ab 0.0 a CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
8 CHK WeedFree 9 CHK Untreated 0.0 c 0.0 b 0.0 a
LSD (P=.05) 3.98 1.17t 0.00 Standard Deviation 2.71 0.80t 0.00 CV 38.5 50.96 0.0 Bartlett's X2 2.367 2.65 0.0 P(Bartlett's X2) 0.796 0.754 Skewness 0.1399 0.5243 Kurtosis -0.3825 -1.4708
Replicate F 0.675 1.332 0.000 Replicate Prob(F) 0.5769 0.2908 1.0000 Treatment F 7.294 3.800 0.000 Treatment Prob(F) 0.0002 0.0081 1.0000
Means followed by same letter do not significantly differ (P=.05, Student-Newman-Keuls) t=Mean descriptions are reported in transformed data units, and are not de-transformed. Mean comparisons performed only when AOV Treatment P(F) is significant at mean comparison OSL.
Sep-4-2015 (Linuron_Rate_Application IR-4_Final) AOV Means Table Page 2 of 9
Mississippi State University
Trial ID: Linuron IR-4
Location: Pontotoc Trial Year: 2014 Protocol ID
Investigator: Mark W. Shankle Project ID:
Study Director :
Sponsor Contact:
Pest Type W Weed W Weed W Weed Pest Code AMARE AMARE AMARE Pest Scientific Name Amaranthus ret> Amaranthus ret> Amaranthus ret> Pest Name Redroot pigweed Redroot pigweed Redroot pigweed Crop Code IPOBA IPOBA IPOBA BBCH Scale BVPP BVPP BVPP Crop Scientific Name Ipomoea batatas Ipomoea batatas Ipomoea batatas
Crop Name Sweet potato Sweet potato Sweet potato Crop Variety B-14 B-14 B-14 Description Part Rated PLAEME - PLAEME - PLAEME - Rating Date Jul-15-2014 Jul-23-2014 Jul-30-2014 Rating Type CONTRO CONTRO CONTRO Rating Unit % % %
Number of Subsamples 1 1 1 Days After First/Last Applic. 15 15 23 23 30 7 Trt-Eval Interval 9 DA-A 9 DA-A 9 DA-A Plant-Eval Interval 15 DP-1 23 DP-1 30 DP-1 ARM Action Codes Trt Treatment No. Type Name
Form Form Form Rate Conc Unit Type Rate Unit
Other Other Growth Appl Rate Rate Unit Stage Code 4 5 6
1 HERB Valor 51 % WG 1.024 oz ai/a 2 oz wt/a PRETRA A 100.0 a 100.0 a 100.0 a HERB Command 3 LBA/GAL ME 1 lb ai/a 2.67 pt/a POSTTR B CULT Roll Cultivator LAYBY C HERB Dual Mag 7.62 LBA/GAL EC 0.762 lb ai/a 0.8 pt/a LAYBY C
2 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a PRETRA A 100.0 a 91.3 a 87.5 b 3 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a PRETRA A 100.0 a 93.8 a 88.5 b 4 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a POSTTR B 100.0 a 97.3 a 91.3 ab 5 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a POSTTR B 100.0 a 95.8 a 93.3 ab 6 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 99.5 a 100.0 a 100.0 a
CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
7 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 100.0 a 100.0 a 100.0 a CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
8 CHK WeedFree 9 CHK Untreated 0.0 b 0.0 b 0.0 c
LSD (P=.05) 0.52 5.96 7.22 Standard Deviation 0.35 4.05 4.91 CV 0.4 4.78 5.95 Bartlett's X2 0.0 7.048 2.374 P(Bartlett's X2) 0.07 0.499 Skewness -2.3804" -2.294* -2.2044* Kurtosis 3.9079* 3.6435* 3.3763*
Replicate F 1.000 0.417 0.430 Replicate Prob(F) 0.4123 0.7429 0.7335 Treatment F 39943.861 288.444 189.064 Treatment Prob(F) 0.0001 0.0001 0.0001
Sep-4-2015 (Linuron_Rate_Application IR-4_Final) AOV Means Table Page 3 of 9
Mississippi State University
Trial ID Protocol ID
Project ID
Linuron IR-4 Location Investigator
Study Director Sponsor Contact :
Pontotoc Trial Year 2014 Mark W. Shankle
Pest Type W Weed W Weed W Weed Pest Code AMARE DIGSS DIGSS Pest Scientific Name Amaranthus ret> Digitaria sp. Digitaria sp. Pest Name Redroot pigweed Crabgrass Crabgrass Crop Code IPOBA IPOBA IPOBA BBCH Scale BVPP BVPP BVPP Crop Scientific Name Ipomoea batatas Ipomoea
batatas Ipomoea
batatas Crop Name Sweet potato Sweet potato Sweet potato Crop Variety B-14 B-14 B-14 Description Part Rated PLAEME - PLAEME - PLAEME - Rating Date Oct-14-2014 Jul-15-2014 Jul-23-2014 Rating Type CONTRO CONTRO CONTRO Rating Unit % % % Number of Subsamples 1 1 1 Days After First/Last Applic. 106 83 15 15 23 23 Trt-Eval Interval 9 DA-A 9 DA-A 9 DA-A Plant-Eval Interval 106 DP-1 15 DP-1 23 DP-1 ARM Action Codes AA AS
Trt Treatment No. Type Name
Form Form Form Rate Conc Unit Type Rate Unit
Other Other Growth Appl Rate Rate Unit Stage Code 7 8 9
1 HERB Valor 51 % WG 1.024 oz ai/a 2 oz wt/a PRETRA A 99.2 a 100.0 a 100.0 a HERB Command 3 LBA/GAL ME 1 lb ai/a 2.67 pt/a POSTTR B CULT Roll Cultivator LAYBY C HERB Dual Mag 7.62 LBA/GAL EC 0.762 lb ai/a 0.8 pt/a LAYBY C
2 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a PRETRA A 79.0 b 100.0 a 99.5 a 3 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a PRETRA A 78.0 b 99.5 a 99.5 a 4 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a POSTTR B 76.5 b 99.5 a 99.5 a 5 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a POSTTR B 84.0 b 100.0 a 99.5 a 6 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 99.9 a 100.0 a 100.0 a
CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
7 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 100.0 a 100.0 a 100.0 a CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
8 CHK WeedFree 9 CHK Untreated 0.0 c 0.0 b 0.0 b
LSD (P=.05) 6.56t 0.68 0.05t Standard Deviation 4.46t 0.46 0.03t CV 6.93 0.53 0.37 Bartlett's X2 1.245 0.0 0.0 P(Bartlett's X2) 0.941 1.00 Skewness -1.4768* -2.3799* -2.3803* Kurtosis 1.5858 3.9065* 3.9078*
Replicate F 0.591 2.333 2.333 Replicate Prob(F) 0.6277 0.1032 0.1032 Treatment F 166.690 23267.669 40190.333 Treatment Prob(F) 0.0001 0.0001 0.0001
Sep-4-2015 (Linuron_Rate_Application IR-4_Final)
AOV Means Table Page 4 of 9
Mississippi State University
Trial ID: Linuron IR-4 Location: Pontotoc Trial Year: 2014 Protocol ID: Investigator: Mark W. Shankle
Project ID: Study Director: Sponsor Contact:
Pest Type Pest Code Pest Scientific Name Pest Name
W Weed DIGSS
Digitaria sp. Crabgrass
W Weed W Weed
DIGSS CYPES Digitaria sp. Cyperus escule>
Crabgrass Yellow nutsedge Crop Code IPOBA IPOBA IPOBA BBCH Scale BVPP BVPP BVPP Crop Scientific Name Ipomoea
batatas Ipomoea Ipomoea batatas
batatas Crop Name Sweet potato Sweet potato Sweet potato Crop Variety B-14 B-14 B-14 Description Part Rated PLAEME - PLAEME - PLAEME - Rating Date Jul-30-2014 Oct-14-2014 Jul-15-2014 Rating Type CONTRO CONTRO CONTRO Rating Unit Number of Subsamples 1 1 1 Days After First/Last Applic. 30 7 106 83 15 15 Trt-Eval Interval 9 DA-A 9 DA-A 9 DA-A Plant-Eval Interval 30 DP-1 106 DP-1 15 DP-1 ARM Action Codes AA
Trt Treatment No. Type Name
Form Form Form Rate Conc Unit Type Rate Unit
Other Other Growth Appl Rate Rate Unit Stage Code 10 11 12
1 HERB Valor 51 % WG 1.024 oz ai/a 2 oz wt/a PRETRA A 100.0 a 100.0 a 99.6 a HERB Command 3 LBA/GAL ME 1 lb ai/a 2.67 pt/a POSTTR B CULT Roll Cultivator LAYBY C HERB Dual Mag 7.62 LBA/GAL EC 0.762 lb ai/a 0.8 pt/a LAYBY C
2 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a PRETRA A 97.5 a 87.5b 97.1 a 3 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a PRETRA A 98.8 a 92.5 ab 98.0 a 4 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a POSTTR B 96.5 a 88.8 b 98.7 a 5 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a POSTTR B 99.5 a 87.5 b 99.4 a 6 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 100.0 a 99.5 a 100.0 a
CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
7 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 100.0 a 100.0 a 100.0 a CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
8 CHK WeedFree 9 CHK Untreated 0.0 b 0.0 c 0.0 b
LSD (P=.05) 3.29 6.09 9.78t Standard Deviation 2.24 4.14 6.65t CV 2.59 5.05 8.9 Bartlett's X2 6.374 8.533 3.167 P(Bartlett's X2) 0.095 0.074 0.53 Skewness -2.3542* -2.1704" -2.1363" Kurtosis 3.8286* 3.2841" 3.1412*
Replicate F 3.368 5.588 2.023 Replicate Prob(F) 0.0378 0.0056 0.1415 Treatment F 977.865 263.403 83.520 Treatment Prob(F) 0.0001 0.0001 0.0001
Sep-4-2015 (Linuron_Rate_Application IR-4_Final)
AOV Means Table Page 5 of 9
Mississippi State University
Trial ID: Linuron IR-4
Location: Pontotoc Trial Year: 2014 Protocol ID:
Investigator: Mark W. Shankle Project ID:
Study Director: Sponsor Contact:
Pest Type Pest Code Pest Scientific Name Pest Name Crop Code BBCH Scale Crop Scientific Name Crop Name Crop Variety Description Part Rated Rating Date Rating Type Rating Unit Number of Subsamples Days After First/Last Applic. Trt-Eval Interval Plant-Eval Interval ARM Action Codes
W Weed CYPES
Cyperus escule> Yellow nutsedge
IPOBA BVPP
Ipomoea batatas Sweet potato
B-14
PLAEME - Jul-23-2014
CONTRO ova
1 23 23 9 DA-A
23 DP-1
W Weed CYPES
Cyperus escule> Yellow nutsedge
I POBA BVPP
Ipomoea batatas Sweet potato
B-14
PLAEME - Jul-30-2014
CONTRO
1 30 7
9 DA-A 30 DP-1
IPOBA BVPP
Ipomoea batatas Sweet potato
US 1 ROOMAR C Oct-24-2014
YIELD box/acre
1 116 93 87 DA-A
116 DP-1
Trt Treatment No. Type Name
Form Form Form Rate Conc Unit Type Rate Unit
Other Other Growth Appl Rate Rate Unit Stage Code 13 14 15
1 HERB Valor 51 % WG 1.024 oz ai/a 2 oz wt/a PRETRA A 100.0 a 100.0 a 513.483 a HERB Command 3 LBA/GAL ME 1 lb ai/a 2.67 pt/a POSTTR B CULT Roll Cultivator LAYBY C HERB Dual Mag 7.62 LBA/GAL EC 0.762 lb ai/a 0.8 pt/a LAYBY C
2 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a PRETRA A 88.8 a 86.3 a 539.050 a 3 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a PRETRA A 89.5 a 87.5 a 522.295 a 4 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a POSTTR B 96.0 a 92.0 a 488.550 a 5 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a POSTTR B 95.8 a 94.5 a 527.575 a 6 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 100.0 a 100.0 a 388.525 ab
CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
7 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 100.0 a 100.0 a 4- 568.425 a CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
8 CHK WeedFree 9 CHK Untreated 0.0 b 0.0 b 319.500 b -a--
LSD (P=.05) 10.67 12.52 126.3600 Standard Deviation 7.26 8.51 85.9135 CV 8.66 10.31 17.77 Bartlett's X2 4.273 5.1 6.694 P(Bartlett's X2) 0.233 0.165 0.461 Skewness -2.1438* -2.0656* -0.0906 Kurtosis 3.127* 2.8566* -0.3797
Replicate F 1.866 1.398 2.970 Replicate Prob(F) 0.1663 0.2710 0.0552 Treatment F 88.538 63.107 3.916 Treatment Prob(F) 0.0001 0.0001 0.0070
Sep-4-2015 (Linuron_Rate_Application IR-4_Final) AOV Means Table Page 6 of 9
Mississippi State University
Trial ID: Linuron IR-4
Location: Pontotoc Trial Year: 2014 Protocol ID:
Investigator: Mark W. Shankle Project ID:
Study Director: Sponsor Contact:
Pest Type Pest Code Pest Scientific Name Pest Name Crop Code BBCH Scale Crop Scientific Name Crop Name Crop Variety Description Part Rated Rating Date Rating Type Rating Unit Number of Subsamples Days After First/Last Applic. Trt-Eval Interval Plant-Eval Interval ARM Action Codes
IPOBA BVPP
Ipomoea batatas Sweet potato
Canner ROOMAR C Oct-24-2014
YIELD box/acre
1 116 93 87 DA-A
116 DP-1 AL
IPOBA BVPP
Ipomoea batatas Sweet potato
Cull ROOUNM C Oct-24-2014
YIELD box/acre
1 116 93 87 DA-A
116 DP-1
IPOBA BVPP
Ipomoea batatas Sweet potato
Jumbo ROOMAR C Oct-24-2014
YIELD box/acre
1 116 93 87 DA-A
116 DP-1 AL
Trt Treatment No. Type Name
Form Form Form Rate Conc Unit Type Rate Unit
Other Other Growth Appl Rate Rate Unit Stage Code 16 17 18
1 HERB Valor 51 % WG 1.024 oz ai/a 2 oz wt/a PRETRA A 87.47 b 52.33 a 0.97 a HERB Command 3 LBA/GAL ME 1 lb ai/a 2.67 pt/a POSTTR B CULT Roll Cultivator LAYBY C HERB Dual Mag 7.62 LBA/GAL EC 0.762 lb ai/a 0.8 pt/a LAYBY C
2 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a PRETRA A 107.99 ab 55.45 a 3.44 a 3 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a PRETRA A 156.66 ab 35.45 a 0.00 a 4 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a POSTTR B 233.69 a 72.58 a 3.25 a 5 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a POSTTR B 114.25 ab 41.40 a 1.08 a 6 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 172.90 ab 65.38 a 0.00 a
CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
7 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 110.98 ab 14.60 a 5.45 a CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
8 CHK WeedFree 9 CHK Untreated 106.38 ab 13.65 a 0.00 a
LSD (P=.05) 0.249t 57.683 0.854t Standard Deviation 0.170t 39.219 0.581t CV 8.01 89.43 172.2 Bartlett's X2 5.61 6.403 0.742 P(Bartlett's X2) 0.586 0.494 0.946 Skewness 0.0845 0.6573 1.3213* Kurtosis -0.5663 -0.4125 -0.0908
Replicate F 0.321 1.098 1.171 Replicate Prob(F) 0.8100 0.3721 0.3443 Treatment F 2.709 1.240 1.265 Treatment Prob(F) 0.0362 0.3256 0.3142
Sep-4-2015 (Linuron_Rate_Application
AOV Means Table Page 7 of 9
Mississippi State University
Trial ID: Linuron IR-4
Location: Pontotoc Trial Year: 2014 Protocol ID:
Investigator: Mark W. Shankle Project ID:
Study Director: Sponsor Contact:
Pest Type Pest Code Pest Scientific Name Pest Name Crop Code BBCH Scale Crop Scientific Name Crop Name Crop Variety Description Part Rated Rating Date Rating Type Rating Unit Number of Subsamples Days After First/Last Applic. Trt-Eval Interval Plant-Eval Interval ARM Action Codes
IPOBA IPOBA IPOBA
BVPP BVPP BVPP Ipomoea batatas Ipomoea batatas Ipomoea batatas
Sweet potato Sweet potato Sweet potato
Tot Market US 1 Percent US 1 Root ROOTOT C ROOMAR C ROOMAR C
Oct-24-2014 Oct-24-2014 Oct-24-2014
YIELD YIELD YIELD
box/acre root/ac
1 1 1
116 93 116 93 116 93
87 DA-A 87 DA-A 87 DA-A
116 DP-1 116 DP-1 116 DP-1
Trt Treatment No. Type Name
Form Form Form Rate Conc Unit Type Rate Unit
Other Other Growth Appl Rate Rate Unit Stage Code 19 20 21
1 HERB Valor 51 % WG 1.024 oz ai/a 2 oz wt/a PRETRA A 601.628 ab 85.113 a 34337.85 a HERB Command 3 LBA/GAL ME 1 lb ai/a 2.67 pt/a POSTTR B CULT Roll Cultivator LAYBY C HERB Dual Mag 7.62 LBA/GAL EC 0.762 lb ai/a 0.8 pt/a LAYBY C
2 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a PRETRA A 665.450 ab 81.325 a 41096.40 a 3 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a PRETRA A 698.670 ab 75.335 a 33683.80 a 4 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a POSTTR B 732.675 a 66.050 a 30522.53 a 5 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a POSTTR B 655.300 ab 80.125 a 42295.50 a 6 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 566.525 b 68.195 a 23218.90 a
CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
7 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 703.250 ab 80.225 a 46437.85 a CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
8 CHK WeedFree 9 CHK Untreated 73.268 a 25944.13 a 4-- 431.250 c
LSD (P=.05) 100.3753 13.5823 18077.115 Standard Deviation 68.2462 9.2347 12290.818 CV 10.8 12.12 35.43 Bartlett's X2 4.218 4.336 5.687 P(Bartlett's X2) 0.754 0.74 0.577 Skewness -0.2478 -0.5728 -0.3762 Kurtosis -0.416 -0.3651 -0.7441
Replicate F 6.197 0.217 1.237 Replicate Prob(F) 0.0035 0.8834 0.3211 Treatment F 8.199 2.102 1.753 Treatment Prob(F) 0.0001 0.0887 0.1507
Sep-4-2015 (Linuron_Rate_Application IR-4_Final) AOV Means Table Page 8 of 9
Mississippi State University
Trial ID: Linuron IR-4
Location: Pontotoc Trial Year 2014 Protocol ID:
Investigator: Mark W. Shankle Project ID:
Study Director: Sponsor Contact:
Pest Type Pest Code Pest Scientific Name Pest Name Crop Code IPOBA IPOBA IPOBA BBCH Scale BVPP BVPP BVPP Crop Scientific Name Ipomoea batatas Ipomoea batatas Ipomoea batatas Crop Name Sweet potato Sweet potato Sweet potato Crop Variety Description Canner Root Cull Root Jumbo Root Part Rated ROOMAR C ROOUNM C ROOMAR C Rating Date Oct-24-2014 Oct-24-2014 Oct-24-2014 Rating Type YIELD YIELD YIELD Rating Unit root/ac root/ac roo/ac Number of Subsamples 1 1 1 Days After First/Last Applic. 116 93 116 93 116 93 Trt-Eval Interval 87 DA-A 87 DA-A 87 DA-A Plant-Eval Interval 116 DP-1 116 DP-1 116 DP-1 ARM Action Codes AL
Trt Treatment No. Type Name
Form Form Form Rate Conc Unit Type Rate Unit
Other Other Growth Appl Rate Rate Unit Stage Code 22 23 24
1 HERB Valor 51 % WG 1.024 oz ai/a 2 oz wt/a PRETRA A 1051.88 a 234.43 a 1.24 a HERB Command 3 LBA/GAL ME 1 lb ai/a 2.67 pt/a POSTTR B CULT Roll Cultivator LAYBY C HERB Dual Mag 7.62 LBA/GAL EC 0.762 lb ai/a 0.8 pt/a LAYBY C
2 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a PRETRA A 1166.08 a 204.35 a 6.43 a 3 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a PRETRA A 1454.55 a 102.18 a 0.00 a 4 HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a POSTTR B 1358.40 a 246.43 a 4.00 a 5 HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a POSTTR B 1274.28 a 162.28 a 1.24 a 6 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 1208.15 a 210.35 a 0.00 a
CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 0.75 lb ai/a 1.5 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
7 HERB Command 3 LBA/GAL ME 1 lb ai/a 2.66 pt/a POST B 1388.43 a 90.15 a 6.74 a CULT Roll Cultivator LAYBY C HERB Lorox FL 4 LBA/GAL F 1.0 lb ai/a 2.0 pt/a LAYBY C ADJ NIS 100 % SL 0.25 % v/v 0.25 % v/v LAYBY C
8 CHK WeedFree 9 CHK Untreated 1316.33 a 54.08 a 0.00 a
LSD (P=.05) 495.331 214.940 1.004t Standard Deviation 336.781 146.140 0.683t CV 26.37 89.64 172.99 Bartlett's X2 7.536 4.552 0.893 P(Bartlett's X2) 0.375 0.714 0.926 Skewness 0.2654 0.3086 1.3427* Kurtosis 0.4324 -1.0585 0.0354
Replicate F 0.757 0.941 1.101 Replicate Prob(F) 0.5305 0.4383 0.3709 Treatment F 0.604 0.987 1.268 Treatment Prob(F) 0.7461 0.4669 0.3125
Sep-4-2015 (Linuron_Rate_Application IR-4_Final) AOV Means Table Page 9 of 9
Mississippi State University
Trial ID: Linuron IR-4
Location: Pontotoc Trial Year: 2014 Protocol ID:
Investigator: Mark W. Shankle Project ID:
Study Director: Sponsor Contact:
Pest Type W, Weed, G-BYRW7, G-WedStg = Weed or volunteer crop Pest Code AMARE, Amaranthus retroflexus. = US DIGSS, Digitaria sp., = US CYPES, Cyperus esculentus, = US Crop Code IPOBA, BVPP, 1pomoea batatas, = US
Part Rated PLANT = plant PLAEME = plant - emerged ROOMAR = root - marketable ROOUNM = root - unmarketable ROOTOT = root - total C = Crop is Part Rated Rating Type PHYGEN = phytotoxicity - general / injury CONTRO = control / burndown or knockdown YIELD = yield Rating Unit
= percent Plant-Eval Interval 9 DP-1 = 1 IPOBA Jun-30-2014 15 DP-1 = 1 IPOBA Jun-30-2014 23 DP-1 = 1 IPOBA Jun-30-2014 30 DP-1 = 1 IPOBA Jun-30-2014 106 DP-1 = 1 IPOBA Jun-30-2014 116 DP-1 = 1 IPOBA Jun-30-2014
ARM Action Codes AS = Automatic square root transformation of X+0.5 AA = Automatic arcsine square root % transformation AL = Automatic log transformation of X+1
